A cognitive stimulating sterilizing device for providing visual, tactile and, or audible stimulation for infants that also selectively sterilizes select items and the surrounding ambient. This including a housing adapted for removable connection to cribs, changing tables and similar furniture, an ultraviolet light source in the housing for sanitizing items in the housing when closed and the ambient when opened, audio source and compartments for holding and storing select items. The housing may include reflective and/or transparent surfaces for directing and/or passing ultraviolet light. A sensor, such as an infrared sensor, detects the presence of a human in the surrounding area in a motion-independent manner, such as by detecting fluctuations in infrared energy emitted by the human. A microcontroller receives data from the sensor and directs the activation and/or deactivation of the ultraviolet light source according to whether a human is detected.